Setts



T. MIDGLEY.

METHOD OF COATING FABRIC.

APPLICATION FIFE!) MAR. I3, I9I9.

Patented Dec. 2,1919.

2 SHEETS-SHEET I ATTORNEYS.

INVENTOR. BY

T. MIDGLEY.

METHOD OF COATING FABRIC.

APPLICATlON FILED MAR. Iii-{19W- Patented Dec. 2,1919.

2 SHEETS-SHEET 2.

1 V NTO ///I/. V I V II, if; ATTORNEYS.

s described With reference to the accompany- COMPANY, OF CHICOPEE FALLS, SETTS. I

siding at Springfield, inthe county) of ampden and State of Massachusetts, have invented certain new and useful Improvements in Methods of Coating Fabric, of which the following is a specification.

- My invention relates to the manufacture of rubber-coated fabric intended primarily for use in automobile tires. In its specific embodiment, it relates to the manufacture of so-called cord fabric, which is a weftless fabric composed of a plurality of spaced parallel cords held together by a coating of rubber. My invention may also be utilized in coating what is known as thread fabric composed of ,a warp of closely spaced parallel cordswith a weft of widely spaced threads; or in coating any sheet material.

My invention has for its object animprovement in the process of applying rubber to such fabrics. i a

Briefly it consists in applying a coating of rubber and some solvent toa carrier surface having the property of adhering to such coating while the solvent is present, but losing that adherence when the solvent is dried out. The fabric, or plurality of par-. allel cords if a cord fabric is being manufactured, isbrought into' contact with the coating, and the Solvent is then dried out. The coated fabric isthen'in a condition to be separated from the carrier, which maybe used repeatedly. My invention will now be ing drawings, in which- Figure l 's an elevation, partly in section,

of one form of apparatusv for carrying out my invention; l

Fi 2 is a perspective-view oftlie Ic'omb i used in guiding .the'parallel cords in the .i so

. manufacture ofcordjfabric; p

Fig-3 is an enlarged cross section-cone:

sponding 1 showing the carrier with therubber-coatmgthereon andthe cords be-' ing embeddedinthe coating;

I a F'g. 4is a'seetion on line {14-of Fig. 3,

Fig. .5 is a perspective viewQshowin the coated fabric being stfiped from the car 6 is .a detail showing-an adaptation of the apparatus of Fig. threador woven fabr c;

1 .for with Specification of Letters Patent.

THOMAS MIDGLEY, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO THE FISK RUBBER MASSACHUSETTS, A CORPORATION OF MASSACHU- METHOD or conrrriire FABRIC.

Patented lDeegfll il Application filed March 18, 1919. Serial No. 283,368.

Fig. 7 is a diagrammatic View showing a modified form of apparatus; and

' i Fig. 8 is a diagrammaticyiew of a further modification.

- In the embodiment of my invention illustrated 1n Fig. 1, a plurality of cords 10 are led from a creel 11, which is of the usual form, between guides 12, here shown-in the form of rollers. These guides serve to bring the cords lnto the same plane, and prevent one cord riding over an ad aC-ent one when I they are wound up with the carrier strip.

Mounted. beyond the guides 12, as on a shaft 13, 1s a comb indicated generally by 14. As shown 1n Fig. 2, the combis formed of a frame 15 with small plates or slats" 16, pref erably of metal, mounted transversely there- I of, leaving slots between them, through each of which a single cord is guided.

Carried on a pedestal 17- is a roll 18 of glazed .fabric or holland 19, which passes over an idler 20 and over a'coating roll 21 located in a tank 22, filled with rubber cement. After the holland has thus received a. coating of rubber cement 23on both sides,

it is led around a roll 24 adjacent the comb. 14. The cords are attached to the holland in any convenient way, and the roll-24 isro tated, as by a pulley 25', thus winding the parallel cords and the holland together on the roll. In this way, the layers of cords ofholland, thus applying a coat of-rubber cementto each side of the cords. It will be "the comb and roll the cords are likely to close up on onearother, having insufficient separation to allo of the rubberpassing up are inclosed between successive coated layers between the cords. The-cords are thus not only made up into acompound sheet c'omposed of a layer of cords coated-on either side by rubber, butthe cords are firmly embedded in amatrix ofjrubber.-- not be the (5ase if the cords any substantial distance betweens the. comb tobunch;

When the holland and cords have been wound up to .-the desired size the cords are and th6-roll, .as: nfihis case they would tend severed, taking due. precaution to prevent This would passed through j the cords losing their parallel relation and the roll 24 removed and placed in a rier.

After the rubber cement has thoroughly' If it is desired t0 treat thread fabric or ordinary woven fabric instead of the parallel cords the same procedure may be fol lowed, omitting the eoinb,' as illustrated in Fig. 6. This same modification may be adopted with reference to Figs. 7and 8 described below.

In Fig. '7 is illustrated means for carryiug outnn'y invention using'an endless carrier 27, of holland or sheet metal. This is led over roll 28, 29, and 30, and over a coating wheel 31 running in a tank 32 containing rubber cement, being thereby coated on one side only. Cords 33 are led from a creel 34 between guides 3.5and through a comb 36, joining the endless carrier over roll 29. The carrier and'cords then pass over a heater 37, the length of Which is sufficient to thoroughly dry out the cement, and

the resulting cord fabric 38, composed of" the cords and the coating carried by the endless band, is wound up on a-reel 39. To preventadhesion of the layers of cord fabric a separating strip or liner 40 may be fabric, consisting in coating acarrier strip fed in from a reel 41. A suction hood 42 is provided over the heater to remove the r vapors and hasten the drying. This method has the advantages of reducing the amount of holland .iiecessary to be kept on hand, and reducing time and labor by drying and peeling the fabric from the carrier continuously with the step of associating the cords with the carrier. i

In Fig. 8 a large drum 43 is substituted for the carrier strip of the other forms. This drum receives a sheet of rubber cement from a roll 45 immersed in a tank 46. Cords 47 are led from a creel 48, between guides 49. and through comb 50 as before, and travel over the upper surface of the drum in'contact'with the sheet of cement. The drum is heated, as by steam admitted through a pipe 51 and a hollow axle 52 of the drum, and the temperature and speed of rotation are adjusted so that the rubber cement will be dried by the time the oppo-' site side" of .the drum is reached. At this 'a' reel 56 .if desired.

sheet of cement 44 and cords 47, isstrippe'd from the drum and wound on a reel 54. As

before, a liner may be introduced from .It will be .understood that the specific means illustrated are not the only ones by which my invention may be carried out, and I do not limit myself thereto.

What I claim is- 1. The method of impregnating and coatmg fabric, consisting in coatin a carrier bringing the fabric to be coated into contact with the rubber coating, rolling the carrier strip and fabric together, drying, and stripstrip of glazed fabric with rub er-cement,

ping the fabric and rubber from the carrier strip. p

2. The method of forming a Weftles's cord fabric, conslsting in coating a carrier with rubber cement,- bringing a plurality of spaced parallel cords into contact with the rubber coating, drying, and stripping the cords and rubber from the carrier.

3. The method of forming a weftless cord fabri-c,.'co-nsisting in coating acarrier strip of glazed fabric with rubber cement, bringcontact with the rubber coating, drying, and stripping the cords andrubber from the carrier. I

4; The method of forming a weftless cord 'ing a plurality of spaced parallel cords into of glazed fabric with rubber cement, bringfabric, consisting in coating a carrier with rubber cement, bringing a plurality of spaced parallel cords into eontact with the coating, drying, stripping the cords and rubber from the carrier, and giving the fabric thus resulting a further coating of rubber.

6. In a device for producing a weftless cord fabric, a carrier, means for coating the carrier with rubber cement, a supply for a plurahty of parallelcords, and a comb arranged close to the carrierto guie the"? cords intocontact therewith and them in parallel-relation. p

. THOMAS MIDGLE-YL,

preserve 

